XML layout verifier : Option to the user lists only screen names only, not the full path

This makes the menu simpler and easy to use
IMPORTANT: Input read directly from screen/template and renderers. No need to generate output.xml by running encapsulation

Other changes:
1. Article screen support
2. Variable RENDERER_SUPPORT_REQUIRED is removed. The renderer support is
no longer an optional feature.
3. Image path changes to accomodate the resource directory
4. Structured options menu to user
Merge branch 'master' of https://github.com/devadastv/xmlLayoutValidator